Frailty panel model

General
1

Hello, I am having errors when I run the below code from R documentation. This is the error that I get

"Error in frailtyPenal(Surv(time, event) ~ cluster(id) + sex + dukes + :
unused arguments (kappa1 = 9.55e+09, kappa2 = 1.41e+12, Frailty = TRUE)"

Could you help figure what I am doing wrong?
Thanks
Alfred

R CODE:

install.packages(c(''frailtypack')
library(frailtypack)
data(readmission)
modJoint.gap <- frailtyPenal(Surv(time,event)~cluster(id)+sex+dukes+charlson+
                               terminal(death),formula.terminalEvent=~sex+dukes+charlson,
                             data=readmission,n.knots=14,kappa1=9.55e+9,kappa2=1.41e+12,
                             Frailty=TRUE,joint=TRUE,recurrentAG=FALSE)
2

what made you think there was a kappa1 and kappa2 parameter ?

is this the documentation you referred to ? frailtypack: Shared, Joint (Generalized) Frailty Models; Surrogate Endpoints (r-project.org)
I did a text search and theres no kappa1 in there ....

3

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